Home / 115,430.40-159,330.24-67,703.04

Finding the Fourth Proportional to 115,430.40, 159,330.24 and 67,703.04

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Solution

The fourth proportional to 115,430.40, 159,330.24 and 67,703.04 is: 93,451.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,430.40 : 159,330.24 = 67,703.04 : x
  2. Step 2: Convert to fraction form
    115,430.40/159,330.24 = 67,703.04/x
  3. Step 3: Cross multiply
    115,430.40x = 159,330.24 × 67,703.04
  4. Step 4: Simplify right side
    115,430.40x = 10,787,141,611.93
  5. Step 5: Solve for x
    x = 10,787,141,611.93/115,430.40
  6. Step 6: Final answer
    x = 93,451.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.